CN103187510A - Solid-state light-emitting element and solid-state light-emitting package thereof - Google Patents

Solid-state light-emitting element and solid-state light-emitting package thereof Download PDF

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Publication number
CN103187510A
CN103187510A CN2012102132275A CN201210213227A CN103187510A CN 103187510 A CN103187510 A CN 103187510A CN 2012102132275 A CN2012102132275 A CN 2012102132275A CN 201210213227 A CN201210213227 A CN 201210213227A CN 103187510 A CN103187510 A CN 103187510A
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China
Prior art keywords
electrode piece
solid
packaging body
solid luminescent
contact jaw
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CN2012102132275A
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Chinese (zh)
Inventor
林昇霈
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Lextar Electronics Corp
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Lextar Electronics Corp
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Publication of CN103187510A publication Critical patent/CN103187510A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/93—Batch processes
    • H01L24/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
    • H01L24/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
    • H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
    • H01L2224/161—Disposition
    • H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/16245—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1204—Optical Diode
    • H01L2924/12041—LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/483—Containers
    • H01L33/486—Containers adapted for surface mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/52—Encapsulations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/64—Heat extraction or cooling elements

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Led Device Packages (AREA)

Abstract

A solid-state light-emitting package includes a lead frame, a light-emitting chip and a molding compound. The lead frame includes a first electrode and a second electrode. The first electrode has at least one first contact end and the second electrode has at least one second contact end. The light emitting chip is electrically connected with the first electrode piece and the second electrode piece and is positioned between the first contact end and the second contact end. The packaging colloid wraps the lead frame and the light-emitting chip and is provided with a first surface and a second surface which are opposite. The first surface is a light-emitting surface of the light-emitting chip. The first electrode and the second electrode are both bent towards the first surface, and the first surface exposes the first contact end and the second contact end.

Description

Solid-state light emitting element and solid luminescent packaging body thereof
Technical field
The present invention relates to a kind of light-emitting device, and be particularly related to a kind of solid-state light emitting element and solid luminescent packaging body thereof.
Background technology
At existing light-emitting diode (Light Emitting Diode, LED) in the encapsulation technology, developed at present and a kind of plastic leaded chip carrier type (Plastic Leaded Chip Carrier Type, PLCC Type) encapsulating structure, and the LED encapsulation body with this encapsulating structure not only comprises lead frame (lead frame), light-emitting diode chip for backlight unit (LED Chip) and packing colloid, but also comprises a plastic bowl cup.
In this LED encapsulation body, lead frame is combined with the plastic bowl cup, and light-emitting diode chip for backlight unit is installed (mounted) on lead frame, and is positioned at the bowl end of plastic bowl cup.Packaging plastic cognition is filled up the plastic bowl cup, and coats light-emitting diode chip for backlight unit and lead frame.The plastic bowl cup is after lead frame is finished, and utilizes formed in mould method, ejection formation for example, and form.
Therefore, in the manufacturing process of above-mentioned LED encapsulation body, the mould of plastic bowl cup must be finished in advance, could form the plastic bowl cup of being combined with lead frame.Yet the exploitation of above-mentioned mould need expend suitable time and money with making, thereby increases the manufacturing cost of LED encapsulation body.
Summary of the invention
The object of the present invention is to provide a kind of solid luminescent packaging body, it does not comprise above-mentioned plastic bowl cup, to reduce because of the mould development of plastic bowl cup and the manufacturing cost that making was produced.
The invention provides a kind of solid-state light emitting element, it comprises a plurality of above-mentioned solid luminescent packaging bodies.
The present invention proposes a kind of solid luminescent packaging body, and it comprises a lead frame, a luminescence chip and a packing colloid.Lead frame comprises one first electrode piece and one second electrode piece.First electrode piece has at least one first contact jaw, and second electrode piece has at least one second contact jaw.Luminescence chip electrically connects first electrode piece and second electrode piece, and the position is between first contact jaw and second contact jaw, and wherein luminescence chip is for sending a light.Packing colloid coated wire frame and luminescence chip.Packing colloid has a relative first surface and a second surface, and wherein first surface is the exiting surface of luminescence chip.First electrode piece and second electrode piece are all towards first surface and bending, and first surface exposes the top area of first contact jaw and second contact jaw.
The present invention proposes a kind of solid-state light emitting element in addition, and it comprises a plurality of above-mentioned solid luminescent packaging bodies.
Based on above-mentioned, solid-state light emitting element of the present invention and solid luminescent packaging body are to adopt packing colloid and lead frame to come the encapsulating light emitting chip, do not adopt existing plastic bowl cup.Therefore, solid-state light emitting element of the present invention and solid luminescent encapsulation physical efficiency reduces the manufacturing cost that mould development and making because of the plastic bowl cup produce.
For enabling further to understand feature of the present invention and technology contents, see also following relevant detailed description of the present invention and accompanying drawing, but these explanations and accompanying drawing only are used for illustrating the present invention, but not interest field of the present invention is done any restriction.
Description of drawings
Figure 1A is the schematic perspective view of the solid luminescent packaging body of one embodiment of the invention.
Figure 1B is the schematic side view of solid luminescent packaging body among Figure 1A.
Fig. 2 A is the schematic perspective view of the solid luminescent packaging body of another embodiment of the present invention.
Fig. 2 B is the schematic side view of solid luminescent packaging body among Fig. 2 A.
Fig. 3 A is the schematic perspective view of the solid luminescent packaging body of another embodiment of the present invention.
Fig. 3 B is the schematic side view of solid luminescent packaging body among Fig. 3 A.
Fig. 4 A is the schematic perspective view of the solid-state light emitting element of one embodiment of the invention.
Fig. 4 B is the enlarged diagram of regional A among Fig. 4 A.
Fig. 5 is the schematic perspective view of the solid-state light emitting element of another embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100,200,300: the solid luminescent packaging body
110,210,310: lead frame
111,211: the first electrode pieces
111a, 211a: first contact jaw
112a, 212a: second contact jaw
112,212: the second electrode pieces
120,220: luminescence chip
122,222: light-emitting area
124,224, B11, B12, B21, B22, B23: bottom surface
130: packing colloid
131: first surface
132: second surface
133: the three surfaces
134: the four surfaces
140: solder projection
213: bearing part
213a, T13, T14, S21, S22: side area
240: bonding lead
400,500: solid-state light emitting element
D1: line direction
D2: column direction
E11: first extension
E12: second extension
L1, L2: light
G1, G2, G3: at interval
S11: first supporting part
S12: second supporting part
T11, T12, T21, T22: top area
Embodiment
Figure 1A is the schematic perspective view of the solid luminescent packaging body of one embodiment of the invention, and Figure 1B is the schematic side view of solid luminescent packaging body among Figure 1A.See also Figure 1A and Figure 1B, solid luminescent packaging body 100 comprises a lead frame 110, a luminescence chip 120 and a packing colloid 130, wherein luminescence chip 120 is installed on the lead frame 110, and electrically connects lead frame 110, and packing colloid 130 coated wire framves 110 and luminescence chip 120.
Lead frame 110 is made by metal material, and comprises one first electrode piece 111 and one second electrode piece 112, and wherein first electrode piece 111 has at least one first contact jaw 111a, and second electrode piece 112 has at least one second contact jaw 112a.Be example with the embodiment shown in Figure 1A, the quantity of the first contact jaw 111a that first electrode piece 111 has is two, and the quantity of the second contact jaw 112a that second electrode piece 112 has also is two.
Yet, in other embodiments, the quantity of the first contact jaw 111a that first electrode piece 111 has can only be more than one or two, and the quantity of the second contact jaw 112a that second electrode piece 112 has can only be more than one or two also, therefore the first contact jaw 111a among Figure 1A and the second contact jaw 112a the two quantity only confession illustrate and non-limiting the present invention.
Packing colloid 130 has a first surface 131, a second surface 132,133 and 1 the 4th surface 134, one the 3rd surface, and wherein first surface 131 is with respect to second surface 132, and the 3rd surface 133 is with respect to the 4th surface 134.In addition, the 133 and the 4th surface 134, the 3rd surface is connected between first surface 131 and the second surface 132, and wherein the 3rd surface 133 is connected in first surface 131 and second surface 132, and the 4th surface 134 also is connected in first surface 131 and second surface 132.
Packing colloid 130 local exposed leads framves 110.Specifically, first surface 131 exposes top area T11 and the T12 of the first contact jaw 111a and the second contact jaw 112a, second surface 132 exposes bottom surface B11 and the B12 of first electrode piece 111 and second electrode piece 112, the 133 and the 4th surface 134, the 3rd surface all exposes side area T13 and the T14 of the first contact jaw 111a and the second contact jaw 112a, shown in Figure 1A and Figure 1B.
Packing colloid 130 exposes top area T11 and the T12 of the first contact jaw 111a and the second contact jaw 112a, can help heat radiation.First electrode piece 111 is in order to be connected scolder (solder with the bottom surface B11 that second electrode piece 112 exposes with B12, do not illustrate), wherein scolder for example is scolding tin, so, external power source can be via scolder, first electrode piece 111 and second electrode piece 112 input current to lead frame 110.
In addition, the 133 and the 4th surface 134, the 3rd surface exposes side area T13 and the T14 of the first contact jaw 111a and the second contact jaw 112a, can be connected scolder (solder does not illustrate) with T14 via side area T13, and wherein scolder for example is scolding tin.So, external power source can be via scolder, the first contact jaw 111a and the second contact jaw 112a input current to lead frame 110.So by the side area T13 and the T14 that expose, can make solid luminescent packaging body 100 is a kind of side-light type encapsulating structures, and then is applied to the light-emitting device of side light inlet type, for example side incident type backlight module, plate lamp etc.
In the present embodiment, bottom surface B11, the B12 of 130 while of packing colloid exposed electrode part and side area T13 and the T14 of contact jaw, but necessity does not expose simultaneously, can be according to demand, bottom surface B11, the B12 of an exposed electrode part during making, or exposed side edge regions T13 and T14 when making.
In addition, the two all has crooked structure first electrode piece 111 and second electrode piece 112, and first electrode piece 111 and second electrode piece 112 are all towards first surface 131 and bending.Specifically, first electrode piece 111 comprises that one first supporting part S11 is connected the first extension E11 of the first supporting part S11 with one, and second electrode piece 112 comprises that one second supporting part S12 is connected the second extension E12 of the second supporting part S12 with one.
The first extension E11 extends to the first contact jaw 111a from the first supporting part S11 towards first surface 131 bendings, and the second extension E12 extends to the second contact jaw 112a from the second supporting part S12 towards first surface 131 bendings.So, first electrode piece 111 and second electrode piece 112 all have towards first surface 131 and crooked structure.In addition, the outside in the knee of first electrode piece 111 and second electrode piece 112 is the circular arc horn shape, as shown in Figure 1B.
Luminescence chip 120 electrically connects first electrode piece 111 and second electrode piece 112, and between the first contact jaw 111a and the second contact jaw 112a, wherein luminescence chip 120 can be to be positioned on the first supporting part S11 and the second supporting part S12 of lead frame 110 in chip bonding (flip chip) mode.Specifically, solid luminescent packaging body 100 can more comprise two solder projections 140, and these solder projections 140 are between lead frame 110 and luminescence chip 120, and wherein luminescence chip 120 can connect the first supporting part S11 and the second supporting part S12 respectively by these solder projections 140.So, luminescence chip 120 is electrically connected first electrode piece 111 and second electrode piece 112.
Luminescence chip 120 for example is light-emitting diode chip for backlight unit, and can be the light-emitting diode chip for backlight unit of forward light emitting-type or lateral direction light emission type.Luminescence chip 120 is used for sending a light L1, and has the bottom surface 124 of a light-emitting area 122 and a relative light-emitting area 122, and wherein these solder projections 140 all are connected in bottom surface 124.
When external power source when input current is to lead frame 110 via scolder, the first contact jaw 111a and the second contact jaw 112a, electric current can be passed to luminescence chip 120 from solder projection 140.So, luminescence chip 120 can be accepted electric current and from light-emitting area 122 L1 that emits beam.In addition, light L1 can penetrate from first surface 131, so first surface 131 can be the exiting surface of luminescence chip 120.
In addition, there is an interval G1(space between the first supporting part S11 and the second supporting part S12), to such an extent as to first electrode piece 111 does not contact each other with second electrode piece 112, and under the situations of the normal operation of solid luminescent packaging body 100, first electrode piece 111 and second electrode piece 112 the two only through luminescence chip 120 and be electrically connected to each other.In other words, if the luminescence chip 120 among Figure 1A and Figure 1B is removed, then first electrode piece 111 and second electrode piece 112 the two can be electrically insulated each other.
Fig. 2 A is the schematic perspective view of the solid luminescent packaging body of another embodiment of the present invention, and Fig. 2 B is the schematic side view of solid luminescent packaging body among Fig. 2 A.See also Fig. 2 A and Fig. 2 B, solid luminescent packaging body 200 comprises a lead frame 210, a luminescence chip 220 and a packing colloid 130, wherein luminescence chip 220 also can be light-emitting diode chip for backlight unit, it for example is the light-emitting diode chip for backlight unit of forward light emitting-type or lateral direction light emission type, and solid luminescent packaging body 200,100 the two structural similarity.
For example, luminescence chip 220 is installed on the lead frame 210, and packing colloid 130 coats luminescence chip 220 and lead frame 210, and local exposed leads frame 210, for example the first surface 131 of packing colloid 130 exposes the top area T21 of the first contact jaw 211a and the top area T22 of the second contact jaw 212a, and the second surface 132 of packing colloid 130 exposes the bottom surface B21 of first electrode piece 211 and the bottom surface B22 of second electrode piece 212.
In addition, be same as first electrode piece 111 and second electrode piece 112 in the previous embodiment, the two all has crooked structure first electrode piece 211 and second electrode piece 212, and wherein first electrode piece 211 and second electrode piece 212 are all towards first surface 131 and bending, shown in Fig. 2 A and Fig. 2 B.In addition, the first contact jaw 211a and second the two function of contact jaw 212a are same as the first contact jaw 111a and the second contact jaw 112a, so no longer repeat to give unnecessary details.
Yet, solid luminescent packaging body 200,100 still has difference between the two, it is: luminescence chip 220 is to engage (wire bonding) mode with routing to be installed on the lead frame 210, and lead frame 210 not only comprises first electrode piece 211 and second electrode piece 212, also comprise a bearing part 213, wherein luminescence chip 220 is installed on the bearing part 213, and for example luminescence chip 220 can be to utilize glue material (adhesive does not illustrate) to bind on bearing part 213.
Particularly, solid luminescent packaging body 200 more comprises many bonding leads 240, wherein packing colloid 130 more coats these bonding leads 240, and each bar bonding lead 240 electrically connects first electrode pieces 211 and second electrode piece 212 the two one of them and luminescence chip 220.Therefore, luminescence chip 220 can electrically connect first electrode piece 211 and second electrode piece 212 via these bonding leads 240.So, luminescence chip 220 can receive via these bonding leads 240, first electrode piece 211 and second electrode piece 212 from the next electric current of external power source, the L2 so that luminescence chip 220 is emitted beam.
In addition, luminescence chip 220 has the bottom surface 224 of a light-emitting area 222 and a relative light-emitting area 222, and wherein luminescence chip 220 is from light-emitting area 222 L2 that emits beam, and bottom surface 224 connects bearing parts 213, and can utilize the glue material to connect bearing part 213.
Bearing part 213 can be configured between first electrode piece 211 and second electrode piece 212, and distinctly there is an interval G2 between bearing part 213 and first electrode piece 211, second electrode piece 212, be bearing part 213 and first electrode piece 211 across a G2 at interval, and bearing part 213 and second electrode piece 212 are across another interval G2.Therefore, bearing part 213, first electrode piece 211 and second electrode piece, 212 threes are separated from one another.In addition, bearing part 213 has a bottom surface B23, and second surface 132 exposes bottom surface B23, shown in Fig. 2 B.Bottom surface B21, B22, B23 can connect scolder (solder does not illustrate), and wherein scolder for example is scolding tin.
Because bearing part 213, first electrode piece 211 and second electrode piece, 212 threes are separated from one another, therefore when luminescence chip 220 is luminous, luminescence chip 220 can come received current from first electrode piece 211 and second electrode piece 212, the heat energy major part that luminescence chip 220 produces is then transmitted from bearing part 213, so in solid luminescent packaging body 200, the two is also inequality for the conducting path of current delivery path and most of heat energy.
What deserves to be mentioned is, be different from Figure 1A and Figure 1B, in the embodiment of Fig. 2 A and Fig. 2 B, the 133 and the 4th surface 134, the 3rd surface of packing colloid 130 does not expose the side area S21 of the first contact jaw 211a and the side area S22 of the second contact jaw 212a.Yet in other embodiments, the 133 and the 4th surface 134, the 3rd surface of packing colloid 130 also can be as shown in Figure 1A and Figure 1B, the local side area T13 of the first contact jaw 111a and the side area T14 of the second contact jaw 112a of exposing.Moreover the side area of bearing part 213 was used as connecting scolder in the middle of the 133 and the 4th surface 134, the 3rd surface of packing colloid 130 also can expose.Therefore, the solid luminescent packaging body 200 shown in Fig. 2 A and Fig. 2 B does not limit the present invention.
Fig. 3 A is the schematic perspective view of the solid luminescent packaging body of another embodiment of the present invention, and Fig. 3 B is the schematic side view of solid luminescent packaging body among Fig. 3 A.See also Fig. 3 A and Fig. 3 B, the solid luminescent packaging body 300 of present embodiment is similar to the solid luminescent packaging body 200 of previous embodiment, and the two difference comprises: the lead frame 310 that solid luminescent packaging body 300 is included.
Particularly, in lead frame 310, bearing part 213 links to each other with first electrode piece 211, and bearing part 213 only separates with second electrode piece 212, and and second electrode piece 212 between have a G2 at interval.In other words, compared to the solid luminescent packaging body 200 of previous embodiment, the solid luminescent packaging body 300 of present embodiment only has a G2 at interval.
Because bearing part 213 links to each other with first electrode piece 211, so in the present embodiment, luminescence chip 220 not only comes received current from first electrode piece 211, and the heat energy major part that luminescence chip 220 produces is also transmitted from bearing part 213 and first electrode piece 211.Therefore, in solid luminescent packaging body 300, the conducting path of current delivery path and most of heat energy can overlap.In addition, the solid luminescent packaging body 300 of present embodiment is all identical with the solid luminescent packaging body of previous embodiment 200 the two allomeric function, so no longer repeat to give unnecessary details.
In addition, similar to the solid luminescent packaging body 100 among Figure 1A, but the place that is different from the solid luminescent packaging body 200 among Fig. 2 A and Fig. 2 B is: in the solid luminescent packaging body 300 shown in Fig. 3 A and Fig. 3 B, packing colloid 130 can expose top area T21 and the side area S21 of the first contact jaw 211a, and the top area T22 of the second contact jaw 212a and side area S22.In addition, packing colloid 130 can more expose the side area 213a of bearing part 213, as shown in Figure 3A.
Side area S21, the S22 that these come out, the side area 213a of bearing part 213 can connect scolder, for example scolding tin.So, external power source can be via scolder, the first contact jaw 211a and the second contact jaw 212a input current to lead frame 310, thereby make luminescence chip 220 luminous.In addition, exposed top area T21, T22 more can help heat radiation, to reduce the situation that overheated (overheat) takes place luminescence chip 220.
Moreover packing colloid 130 also can more expose the bottom surface of first electrode piece 211, second electrode piece 212, bearing part 213, to be connected with scolder.
Must explanation be, in other embodiments, can be according to demand, exposed side edge regions S21, S22 and side area 213a during making, or when making exposed side edge regions S21, S22.Therefore, the two exposed part of the first contact jaw 211a shown in Fig. 3 A and Fig. 3 B and the second contact jaw 212a only supplies to illustrate, and non-limiting the present invention.
Fig. 4 A is the schematic perspective view of the solid-state light emitting element of one embodiment of the invention, and Fig. 4 B is the enlarged diagram of regional A among Fig. 4 A.See also Fig. 4 A, the solid-state light emitting element 400 of present embodiment comprises the disclosed solid luminescent packaging body of a plurality of previous embodiment, and in the embodiment shown in Fig. 4 A and Fig. 4 B, solid-state light emitting element 400 included solid luminescent packaging bodies are to see also Fig. 3 A and Fig. 3 B with solid luminescent packaging body 300() be example.
Yet, in other embodiments, solid-state light emitting element 400 included solid luminescent packaging bodies not only can be solid luminescent packaging bodies 300, and can be that solid luminescent packaging body 100(sees also Figure 1A and Figure 1B) or 200(see also Fig. 2 A and Fig. 2 B).Secondly, solid-state light emitting element 400 not only can comprise single kind of solid luminescent packaging body, and can comprise multiple solid luminescent packaging body.For example solid-state light emitting element 400 can comprise a plurality of solid luminescent packaging bodies 200 and 300.Therefore, emphasize at this that kind of the solid luminescent packaging body shown in Fig. 4 A and Fig. 4 B only supplies to illustrate, and non-limiting the present invention.
In the embodiment shown in Fig. 4 A and Fig. 4 B, these solid luminescent packaging bodies 300 can be ranks and arrange, wherein be arranged in these solid luminescent packaging bodies 300 with delegation, the solid luminescent packaging body of arranging along line direction D1 300 just, be adjacent to each other, and each adjacent these solid luminescent packaging body 300 has an interval G3 in the ranks, and namely these solid luminescent packaging bodies 300 of arranging along column direction D2 have G3 at interval each other.
In solid-state light emitting element 400, the lead frame 310 of all solid luminescent packaging bodies 300 can be to be formed by at least one metallic plate manufacturing, and the method for making these lead frames 310 for example is that above-mentioned metallic plate is carried out machining, punch press (Stamping Press) for example, so that metallic plate is crooked and form these G2 and G3 at interval, thereby form the lead frame 310 that part is adjacent to each other, shown in Fig. 4 A and Fig. 4 B.
After forming these lead frames 310, at these lead frame 310 installing luminescence chips 220, wherein luminescence chip 220 can be to be installed on the lead frame 310 with the mode that chip bonding or routing engage.Afterwards, form packing colloid 130, so that these lead frames 310 and these luminescence chips 220 are coated, thereby finish solid-state light emitting element 400.
Hold above-mentionedly, after solid-state light emitting element 400, can cut (dicing) to solid-state light emitting element 400, so that these solid luminescent packaging bodies 300 are separated from one another.In other words, the solid luminescent packaging body 300 shown in Fig. 3 A and Fig. 3 B can form from solid-state light emitting element 400 cuttings, and namely solid luminescent packaging body 300 can be a part that cuts down from solid-state light emitting element 400.
Because in other embodiments, solid-state light emitting element 400 also can comprise a plurality of solid luminescent packaging bodies 100 or 200, therefore the solid luminescent packaging body 100 and 200 shown in Figure 1A, Figure 1B, Fig. 2 A and Figure 1B also can be to form from solid-state light emitting element 400 cuttings, and namely solid luminescent packaging body 100 and 200 also can be a part that cuts down from solid-state light emitting element 400.
In addition, solid-state light emitting element 400 can directly use as light emitting source.For example, solid-state light emitting element 400 can be used as the lamp source of lighting, or with diffusion sheet (diffuser) and brightness enhancement film blooming pieces such as (bright enhancement film) (optical film) in conjunction with and be made into LCD (Liquid Crystal Display, the formula that directly is lowered to backlight module LCD) (direct-type backlight module).
Fig. 5 is the schematic perspective view of the solid-state light emitting element of another embodiment of the present invention.See also Fig. 5, the solid-state light emitting element 500 of present embodiment is similar to aforementioned solid-state light emitting element 400, yet difference only is: in solid-state light emitting element 500, all solid luminescent packaging bodies 300 are to be arranged in row, and have an interval G3 between each adjacent these lead frame 310.
Specifically, in solid-state light emitting element 500, all solid luminescent packaging bodies 300 are to arrange along column direction D2, and these solid luminescent packaging bodies 300 have G3 at interval each other.In addition, solid-state light emitting element 500 also can be to form from solid-state light emitting element 400 cuttings.In other words, solid-state light emitting element 500 can be a part that cuts down from solid-state light emitting element 400.
In addition, solid-state light emitting element 500 can be used as lamp bar (light bar) and uses, for example solid-state light emitting element 500 can be used as the lamp source of lighting, or with light guide plate (Light Guide Plate, LGP) in conjunction with and be made into the side type backlight module (side-type backlight module) of LCD.
Mandatory declaration be, though solid luminescent packaging body 100,200 and 300 and solid-state light emitting element 500 all can form from solid-state light emitting element 400 cutting, but solid luminescent packaging body 100,200 and 300 and solid-state light emitting element 500 also can form without cutting, and solid-state light emitting element 400 also can be to cut from other solid-state light emitting element that contains a greater number solid luminescent packaging body to form.Therefore, above-described manufacturing solid luminescent packaging body 100,200 and 300 and the method for solid-state light emitting element 400 and 500 only for illustrating, and non-limiting the present invention.
In sum, solid-state light emitting element of the present invention and solid luminescent encapsulation physical efficiency do not adopt existing plastic bowl cup to come the encapsulating light emitting chip, thereby can reduce the manufacturing cost that mould development and making because of the plastic bowl cup produce, and save exploitation and make the required time of mould.Compared to the encapsulating structure of known plastic leaded chip carrier type, solid-state light emitting element of the present invention and solid luminescent packaging body all have manufacturing cost on the low side and less manufacturing time.
In addition, in above disclosed embodiment, the solid luminescent packaging body can be to form from the solid-state light emitting element cutting, and the solid-state light emitting element that has (for example shown in Figure 5 solid-state light emitting element 500) also can be to form from the solid-state light emitting element cutting, therefore utilize the cutting to solid-state light emitting element (for example solid-state light emitting element shown in Fig. 4 A 400), can design solid-state light emitting element (for example lamp bar) or the solid luminescent packaging body of multiple size and multiple external form, thereby satisfy diversified product demand.
The above only is embodiments of the invention, and it is not in order to limit scope of patent protection of the present invention.Anyly have the knack of alike skill person, in not breaking away from spirit of the present invention and scope, the change of doing and the equivalence of retouching are replaced, and still are in the scope of patent protection of the present invention.

Claims (16)

1. a solid luminescent packaging body is characterized in that, this solid luminescent packaging body comprises:
Lead frame comprises:
First electrode piece has at least one first contact jaw;
Second electrode piece has at least one second contact jaw;
Luminescence chip electrically connects this first electrode piece and this second electrode piece, and between this first contact jaw and this second contact jaw, wherein this luminescence chip is used for emitting beam; And
Packing colloid, coat this lead frame and this luminescence chip, this packing colloid has opposite first and second surface, wherein this first surface is the exiting surface of this luminescence chip, and this first electrode piece and this second electrode piece are all towards this first surface and bending, and this first surface exposes the top area of this first contact jaw and the top area of this second contact jaw.
2. solid luminescent packaging body as claimed in claim 1, it is characterized in that, this first electrode piece comprises first supporting part and first extension that is connected this first supporting part, and this second electrode piece comprises second extension of second supporting part and this second supporting part of at least one connection, this first extension extends to this first contact jaw from this first supporting part towards this first surface bending, and this second extension extends to this second contact jaw from this second supporting part towards this first surface bending.
3. solid luminescent packaging body as claimed in claim 2 is characterized in that, has between this first supporting part and this second supporting part at interval.
4. solid luminescent packaging body as claimed in claim 2 is characterized in that, this luminescence chip is positioned on this first supporting part and second supporting part of this lead frame in the chip bonding mode.
5. solid luminescent packaging body as claimed in claim 1 is characterized in that, this lead frame more comprises bearing part, and this bearing part is configured between this first electrode piece and this second electrode piece, and wherein this luminescence chip is installed on this bearing part.
6. solid luminescent packaging body as claimed in claim 5 is characterized in that, this solid luminescent packaging body also comprises many bonding leads, and this luminescence chip electrically connects this first electrode piece and this second electrode piece via described many bonding leads.
7. solid luminescent packaging body as claimed in claim 5 is characterized in that, this bearing part links to each other with this first electrode piece, and has between this bearing part and this second electrode piece at interval.
8. solid luminescent packaging body as claimed in claim 5 is characterized in that, distinctly has between this bearing part and this first electrode piece, second electrode piece at interval.
9. solid luminescent packaging body as claimed in claim 5 is characterized in that, this second surface exposes this bearing part bottom surface.
10. solid luminescent packaging body as claimed in claim 1 is characterized in that, this second surface exposes the bottom surface of this first electrode piece and this second electrode piece.
11. solid luminescent packaging body as claimed in claim 1, it is characterized in that, this packing colloid also has the 3rd relative surface and the 4th surface, the 3rd surface and the 4th surface are connected between this first surface and this second surface, and the 3rd surface and the 4th surperficial side area that exposes this first contact jaw and this second contact jaw.
12. solid luminescent packaging body as claimed in claim 1 is characterized in that, the outside in the knee of this first electrode piece and this second electrode piece is the circular arc horn shape.
13. a solid-state light emitting element is characterized in that, this solid-state light emitting element comprises a plurality of as each described solid luminescent packaging body in the claim 1 to 12.
14. solid-state light emitting element as claimed in claim 13 is characterized in that, described a plurality of solid luminescent packaging bodies are arranged in row, and have between the adjacent described lead frame at interval.
15. solid-state light emitting element as claimed in claim 13 is characterized in that, those solid luminescent packaging bodies are ranks and arrange.
16. solid-state light emitting element as claimed in claim 15 is characterized in that, the described a plurality of solid luminescent packaging bodies that are arranged in delegation are adjacent to each other, and adjacent described solid luminescent packaging body in the ranks has at interval.
CN2012102132275A 2012-01-02 2012-06-26 Solid-state light-emitting element and solid-state light-emitting package thereof Pending CN103187510A (en)

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Application publication date: 20130703